extract specific text from data

I have below text and I want to extract Comment allez-vous from below text how do I extract using C# ?. This text will be different 开发者_运维技巧all the time. rest of the data format is the same.

handleResponse({
 "data": {
  "translations": [
   {
    "translatedText": "Comment allez-vous"
   }
  ]
 }
}
);

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It's JSON. Use a JSON parser for .Net like JSON.NET or the JavaScriptSerializer

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1. Look for last index of ". index A

2. Find first index for translatedText + length of translatedText +1. index B

3. fetch all string betwee B and A.